What is ChatPDF?
ChatPDF is a web app that lets you upload a PDF and ask it questions in plain language, in the style of ChatGPT but limited to the content of your document. You drop a file into the chat window or paste a link, and the AI builds a map of the document's content so it can answer with summaries, explanations or specific facts.
Answers include built-in citations that link back to the relevant passages in the original PDF, so you can verify claims without searching page by page. You can also organize several files into folders and chat across them at once, translate documents in other languages, and use the side-by-side view to keep the chat and the PDF open together. The text also lists support for Word, PowerPoint, Markdown and plain text files.
Key features
- Chat with PDF documents in natural language
- Built-in citations linking answers to the source PDF
- Multi-file chats organized in folders
- Document summaries
- Translation of PDFs in other languages
- Side-by-side view of chat and document
Who is it for
- Students
- Researchers
- Professionals reviewing contracts, reports and manuals
How to get started with ChatPDF
- Open the ChatPDF website in your browser
- Upload a PDF, Word, PowerPoint, Markdown or TXT file
- Ask a question about the document and check the citations
- You want to summarize research articles, reports or contracts
- You need answers with citations to the original text
- You want to compare several files in one chat
- You need to analyze more than 2 documents per day for free
- You are looking for a mobile app, as the tool works only in a browser
Pros and cons
- No sign-up required to start
- Answers are linked to original PDF passages for easy verification
- Works with documents in any language
- Free plan is limited to 2 documents per day
ChatPDF pricing
| Plan | Price | Includes |
|---|---|---|
| Free | 0 USD | 2 dokumenty dziennie, bez konta |
Prices copied from ChatPDF pricing, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
Is ChatPDF free?
Yes, there is a free plan. Free plan: analyze 2 documents every day; no account needed to start (account unlocks saved history and multi-document chats).
Featured in
- Best AI for PDFs - #1
- Best AI for summarizing - #2
ChatPDF alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 UPDF | not listed | trial | PDF & documents |
 Humata | 9.99 USD/mo | yes | PDF & documents |
 iLovePDF | 5 EUR/mo | yes | PDF & documents |
 Chat With PDF by Copilot.us | not listed | ? | PDF & documents |
 LlamaParse | 50 USD/mo | yes | PDF & documents |
 QuillBot | not listed | ? | Writing & editing |
Comparisons
FAQ
What is ChatPDF used for?
Chat with PDFs and other documents to get summaries, answers and cited passages - for students, researchers and professionals.
Is ChatPDF free?
Yes, there is a free plan. Free plan: analyze 2 documents every day; no account needed to start (account unlocks saved history and multi-document chats).
How much does ChatPDF cost?
The vendor does not publish prices publicly or requires sign-in.
What are the best ChatPDF alternatives?
Closest alternatives: UPDF, Humata, iLovePDF, Chat With PDF by Copilot.us, LlamaParse.
Data checked October 12, 2026 on the vendor website (chatpdf.com).